Gillies N, Cameron-Smith D, Pundir S, Wall CR, et al. Exploring trajectories in dietary adequacy of the B vitamins folate, riboflavin,
vitamins B6 and B12, with advancing older age: a systematic review. Br J Nutr 2020 Oct 29:1-32. doi: 10.1017/S0007114520004249.
PMID: 33118888